Thermostatic valve insert



FIG. 1 is a front, top perspective view of a thermostatic valve insertcomprising a new, original and ornamental design;

FIG. 2 is a top view of a thermostatic valve insert comprising the new,original and ornamental design;

FIG. 3 is a bottom view of a thermostatic valve insert comprising thenew, original and ornamental design;

FIG. 4 is a front view of a thermostatic valve insert comprising thenew, original and ornamental design;

FIG. 5 is a rear view of a thermostatic valve insert comprising the new,original and ornamental design;

FIG. 6 is a right-hand side view of a thermostatic valve insertcomprising the new, original and ornamental design; and,

FIG. 7 is a left-hand side view of a thermostatic valve insertcomprising the new, original and ornamental design.

CLAIM The ornamental design for a thermostatic valve insert, as shownand described.